Rim-breaker.



H. M. DU BOIS.

RIM BREAKER. l

APPLICATION men MAR. l. 1916.

1,199,6'4., l Patented sept. 26,1916.

l To all whom t may concern:

vist

ATET OFFICE HoMEn M..DU Bols, or noUs'roN, TEXAS, AssIGNon or ONE-HALF To NEVILLE W.

DU BOIS, 0F HOUSTON, TEXAS.

RIM-BREAKER.

Be it known that I, Homin M. DU Bols, a citizen of the United States, residing at ouston, in the county ot' Harris and State of Texas, have invented certain new and useful Improvements in Rim-Breakers; and l hereby declare that the following is a full, clear, and exact description thereof, reference being` had to the Y drawings, which cation.

IThis invention is a novel implement or tool for use in applying or repairing dellatable tires of automobiles or other vehicles using detachable wheel tires of that type in which resilient or cushion tires are applied to an annular metal rim, which is adapted to be detachably attached to the telly of a wheel; such rim being ren'iovable from the wheel when it is desired to repair the tire, and aiter the repairs have been made the tire is replaced upon the rim and secured thereto and the rim thenreplaced on the wheel. n y

The object of my invention to provide a. simple implement which can he. readily carried in a to'ol kit ot' thcinufhine, and by which an operator y gage the ends ot theirim whenit vris desired to deflate a tire ori". ngage the ends of the rim when it is desired to reconnect the same.

l will explain thel invention with rc'lerence to the acconmanying drawings.

ln said drawings: Figure l is -a perspective view ol' the implement as applied to an ordinary detachable wheel rim, and in position preparatory to disconnectingthe-ends of the` rim and contracting same. Fig. 2 is a side elevation o1 the implement applied to a rim, and showing it in `full lines in position when first applied to a rim, or a'lter it has been used to expand and reconnect the form part ot' this specifiends'of the rim: and showing in dotted lines Y assumed after it the parts in the positions has been used to disconnect the ends of the rim and contract it. Fig. 3 is a. detail section on line 3*;3, Fig. 2.

The rim 1 is usually made of metal and corresponds in internal diameter to the eX-' terna] diameter ot' the peripherv o'l the telly ot' the wheel on which it is to be mounted. Said rim may be of any desired shape in cross section to suit the tire with which it is to be used; and is shown as of Specification of Letters Patent.

accompanying' canwery readily disen- Patented sept. 26, 1916.

Application led March 1, 1916. Serial No. 81,351.

the ordinary4 type commonly used with elencher tires, the edges of the rim being cnryedas shown at 1*? to engage the flanges 2f of. the tire T.

The meeting ends of the rim 1 should abut Aas shown in Fig. l, and are customarily provided with some suitable .interlocking means, by which they can be locked together when the rim is expanded as indicated in Fig. l. I have merely conventionally shown an ordinary T-shaped ylocking lug 1b `on one end of the rim adapted to engage -a correspendingslot l in thevother end of the rim; this is merely one of various types of interlocking devices which may be or are commonly used on such rims, and as it formsno part ot' the present invention needs no particular description herein. .-\ll the aforesaid parts are common and well known and may he of any ordinary or preferred construction.

As shown in said drawings the implement comprises two clamps each composed kup . of two opposite members. The members 0fclamp 2 are substantially alike vand are prg- 80 vided' with curved portionsQ adapted-t0 engage the sides ot' the rim 1, and n ith upstanding portions 2" which approach each other near the center of the rim, and which portions 2l are connected by a bolt 3 preferably secured by a wing nut 3b.

The clampmembers 2 are also connected to one end ot a lin-lt or lever 4, which is strung on the bolt 3 intermediate the members 2. One ol the clamp lmembers may be provided with a flange 2c on its upper end which overlies lever 4C so that when the clamps are applied to the rim and the bolt tightened the clamps may be firmly bound together to the rim without binding lever 4, see Fig. 3.

The lever 4 is preferably provided with a bifurcated outer end, and is pivot-ally connected at its outer end by. a bolt 4" to a handle lever 5, which has-a major handle portion 5 and ashort portion ."b which eX- tends beyond th'efpi-vot 4f and has its end preterably bifurcated and pivotally connected by'means of a bolt 5c to one arm G of a three-armed lever or plate having a depending arm 6, opposite arm 6, and a rearwardly projecting arm 6b extending about perpendicularto arms G, 6a. The arm 6b is pivf, oted on a bolt 7 which is supported by and between the opposite members 8 of a clamp 110 similar to the clamp 2. Each member S-has thereof, while the implement is expanded, as shown in Figs. 1 and 2, withA the handle lever 5 resting upon or lying adjacent the clamp 2. After the clamps are thus applied it will be seen that the arm' 6 rests upon the inner side of the rim. When thus applied the arm 6a forms a brace for the clamp 8 and prevents its tiltingtoward the other clamp, and as the hand lever 5 is turned to' the position shown in dotted lines in Fig.

L 2, considerable leverage .or pressure is applied through the arm (3a to the rim at a point between the clamp and the end of the y rim. Arm 6n prevents clamp 8 slipping and holds the pivot 5 practically stationary `relative to the rim, thus concentrating the power applied by the hand lever for the purpose of contracting the rim. When the hand lever is thrown around to the position indicated at 5 in Fig. 2 it automatically locks and holds the rim in contracted posi- 3 5 tion. By forcibly moving the lever 5, in the direction of the arrow, to the position shown in dotted lines in Fig. 2, the vmeeting ends of the rim will be first separated so as to disengage the catch 1b and then, by

40 swinging` the lever 5 to the position indicated at 5 in Fig. 2, the ends of therim will be caused toovcrlap as indicated in dotted lines in Fig. In such position of course the rim will be contracted and the tire T. can be readily'removed fork repairs or replacement. The implement should be left attached to the rim until the tire has been replaced thereon, then by returning 'lever 5 from position 5x to the position shown in full lines in Fig. 2 the rim will be expanded and the rim catch 1c rengaged rim; comprising a pair of clamping devices' adapted to be engaged with the rim adjacent the meeting ends thereof; a leve-r pivotally connected with one clampingA device and having an arm adapted to engage with the rim between the clamp' and end of rim, a hand lever connected with the said lever;

and a link pivotally connected with thev hand lever at one end' and at its other end with the other clamping device.

3. An implement for connecting and disconnecting the ends of a detachable wheel rim; comprising opposite clamps; cach comprising two members and means for detachably clamping said members to the rim, a three armed lever pivotally` connected to one of thev clamps and having. one arm, adapted to bear upon the inner side of the rim between the clamp and end of rim, and its third arm pivotcd to the clanlp, a hand lever connected to the other arm of said lever; a link pivotally connected at one end to'the hand lever adjacent its pivot to the first lever, having Tits other end pivotally connected to the other clamp; whereby said clamp members may be forcibly moved' toward each other to contract the rim.

In testimony that l claim the foregoing as -my own, I affix my signature.

HOMER M. DU' BOIS. 

